15864225

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{307}}^1$

素因数の和:386

約数の個数: 48

約数和(自身を含む): 28873152

約数和(自身を除く): 13008927

約数列:

[1, 3, 5, 13, 15, 25, 39, 53, 65, 75, 159, 195, 265, 307, 325, 689, 795, 921, 975, 1325, 1535, 2067, 3445, 3975, 3991, 4605, 7675, 10335, 11973, 16271, 17225, 19955, 23025, 48813, 51675, 59865, 81355, 99775, 211523, 244065, 299325, 406775, 634569, 1057615, 1220325, 3172845, 5288075, 15864225]

約数ペア:

[(1, 15864225), (3, 5288075), (5, 3172845), (13, 1220325), (15, 1057615), (25, 634569), (39, 406775), (53, 299325), (65, 244065), (75, 211523), (159, 99775), (195, 81355), (265, 59865), (307, 51675), (325, 48813), (689, 23025), (795, 19955), (921, 17225), (975, 16271), (1325, 11973), (1535, 10335), (2067, 7675), (3445, 4605), (3975, 3991)]